Cancer registries provided demographic parameters and clinical information such as date of birth, date of diagnosis, and cancer stage. Physicians and cancer registries gave detailed information on treatments, disease progression/relapse (including biochemical and clinical recurrence, and metastasis after diagnosis of primary tumour at time of survey), and other primary tumours. Self-reported information included education, living with partner, nationality, working status, body weight, body height, and physical activity. Furthermore, self-reported experience (yes/no) of the following comorbidities were assessed: depression, arthritis/rheumatism/arthrosis, diabetes, degenerative disc disease, and upper gastrointestinal disease.
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